Add 27/3 and 10/21
1st number: 9 0/3, 2nd number: 10/21
27/3 + 10/21 is 199/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 21 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
27/3 = 27 × 7/3 × 7 = 189/21 - Likewise, for the 2nd fraction, since 21 × 1 = 21,
10/21 = 10 × 1/21 × 1 = 10/21 - Add the two like fractions:
189/21 + 10/21 = 189 + 10/21 = 199/21 - So, 27/3 + 10/21 = 199/21
In mixed form: 910/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/3+10/21 27/3+20/21 27/6+10/21 27/3+10/42 81/3+10/21 27/3+30/21 27/9+10/21 27/3+10/63 27/3+50/21 27/15+10/21 27/3+70/21 27/21+10/21